Structure of an Atom
Properties of Matter
Periodic Table
Stars and Elemental Origins
Wildcard
100
Which subatomic particle has a positive charge, and determines the atomic number?
Protons
100
Would helium be considered an element, mixture, or compound?
Helium is an element (atomic number = 2)
100
What is the atomic number of Rubidium?
37
100
What event caused the expansion of the entire universe?
The Big Bang
100
How many valence electrons does sulfur have?
6
200
Which subatomic particle has a negative charge and exists outside the nucleus?
Electrons
200
Lamar throws a football, breaking a glass window. Is the glass window breaking a physical change or a chemical change?
Physical change
200
How many valence electrons do atoms in group 13 have?
3
200
What element is made during a star's main sequence stage?
Helium
200
What is Mr. Faass' legal first name?
Timothy
300
What two subatomic particles make up the mass of an atom?
Protons and Neutrons
300
Is Pure Water (H2O) classified as an element, mixture, or compound?
Compound
300
Which element can be found in group 15, period 4?
Arsenic (As)
300
The Big Bang is the only natural source for this element.
Hydrogen
300
Draw the Lewis dot structure for oxygen
400
What is the Charge of an element with 7 protons, 8 neutrons, and 10 electrons?
Mass = p+ e-
Mass = 7 - 10 = -3
400
Is potassium (K) a metal, nonmetal, or metalloid?
Metal
400
Which element has 3 times the atomic number of neon?
3 x 10 = 30.
Element 30 is Zinc
400
Iron is made during which star stage?
A. Red Giant
B. Supernova
C. Main Sequence
A. Red Giant
400
An atom of carbon has a mass of 14, how many neutrons does it have?
Mass = p+ + n0
n0 = Mass + p+
n0 = 14 - 6 = 8
500
What force attracts electrons to protons?
Electromagnetic
500
Lawrence is making some Mac n Cheese and boils water. He forgets about the water for an hour and it is all gone. Is the water evaporating a physical or chemical change?
Physical change
500
As you move across the periodic table from sodium to chlorine, what happens to the electronegativity of the atoms?
It increases
500
As light from stars moves away from us, which color will the light shift towards.
Red (Redshift)
500
Which element cannot be found in the mixture?
Element G